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Harden favicon link parsing

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This commit is contained in:
Chirag Aggarwal
2026-04-06 20:24:18 +05:30
parent 9e23ba138b
commit 9dbc32d722
1 changed files with 3 additions and 2 deletions
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src/Appwrite/Platform/Modules/Avatars/Http/Favicon/Get.php
+3 -2
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@@ -97,7 +97,8 @@ class Get extends Action
$space = 0;
$linkTags = [];
\preg_match_all('/<link\b[^>]*>/i', $res->getBody(), $linkTags);
$html = \preg_replace('/<!--.*?-->/s', '', $res->getBody()) ?? $res->getBody();
\preg_match_all('/<link\b[^>]*>/i', $html, $linkTags);
foreach ($linkTags[0] ?? [] as $tag) {
$attributes = [];
@@ -107,7 +108,7 @@ class Get extends Action
foreach ($attributeMatches as $attributeMatch) {
$attributes[\strtolower($attributeMatch[1])] = \html_entity_decode(
$attributeMatch[2] ?: $attributeMatch[3] ?: $attributeMatch[4],
$attributeMatch[2] !== '' ? $attributeMatch[2] : ($attributeMatch[3] !== '' ? $attributeMatch[3] : $attributeMatch[4]),
\ENT_QUOTES | \ENT_HTML5
);
}